'''Twitter''' () is an online social networking service|social networking
service that enables users to send and read short 140-character (computing)|character
messages called "tweets".
Registered users can read and post tweets, but those who are unregistered can only read them. Users access Twitter through the website interface, Short Message Service|SMS
or mobile device Application software|app
[[http://support.twitter.com/groups/34-apps-sms-and-mobile/topics/153-twitter-via-sms/articles/14014-twitter-via-sms-faq# "Twitter via SMS FAQ"] Retrieved April 13, 2012.]
Twitter Inc. is based in San Francisco
and has more than 25 offices around the world.
[[https://about.twitter.com/company "About Twitter"] Retrieved April 24, 2014.]
Twitter was created in March 2006 by Jack Dorsey
, Evan Williams (Internet entrepreneur)|Evan Williams
, Biz Stone
, and Noah Glass
and launched in July 2006. The service...